6. Energy and Momentum of Rotating Systems
Conservation Of Angular Momentum — Quiz
Test your understanding of conservation of angular momentum with 5 practice questions.
Practice Questions
Question 1
Which statement best describes the condition under which angular momentum is conserved for a rotating system?
Question 2
A figure skater pulls her arms inward while spinning on ice. What happens to her angular speed if external torque is negligible?
Question 3
A rotating disk has a moment of inertia $I$. If no external torque acts on it and its angular speed changes from $\omega$ to $2\omega$, what must happen to its moment of inertia?
Question 4
Which quantity is the rotational analog of linear momentum in conservation problems?
Question 5
A student opens a spinning office chair by extending both arms outward. Neglecting external torque, which change is expected?